/Engine/Source/Runtime/MovieScene/Public/Evaluation/MovieSceneEvaluationTrack.h
Get this track's child templates NOTE that this is intended for use during the compilation phase in-editor. Beware of using this to modify templates afterwards as it will almost certainly break evaluation.
[TArrayView](API\Runtime\Core\Containers\TArrayView)< [FMovieSceneEvalTemplatePtr](API\Runtime\MovieScene\Evaluation\FMovieSceneEvalTemplatePtr) > GetChildTemplates()